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Executive Summary
Sea otters thrived off the coast of Washington for thousands of years before they were extirpated by an intensive harvest for their valuable pelts. From about 1911 to 1969, sea otters were absent from the state, but in 1969 and 1970, 59 otters were reintroduced to the coast from Amchitka Island, Alaska. After a decade of questionable status, the Washington sea otter population began to increase steadily. From 1989 to 1999, the population grew at an average annual rate of about 11%. The most recent survey, in July 1999, found 605 individuals. The recent sea otter range in Washington has extended from Destruction Island to Neah Bay, with concentrations in the vicinities of Destruction Island, Cape Johnson, Sand Point, Cape Alava, and Makah Bay. The current distribution differs from the pre-exploitation range, which extended south to the Columbia River with a major concentration off Point Grenville. Some authorities consider further expansion of Washington's sea otter population unlikely, while others consider it inevitable. It is not possible to predict whether the population will continue to grow and spread and, if so, at what rate and in which direction. Sea otters feed primarily on benthic invertebrates, consuming many pounds of prey each day to meet their high metabolic needs. They consume shellfish species—urchins, abalones, clams, crabs—important to commercial, recreational, and tribal fisheries, yet through their predation on sea urchins, they may, in some circumstances, indirectly enhance the growth of kelp and kelp-associated communities. Sea otters are vulnerable to oil spills and may eventually be harvested by Indian tribes. These issues and others, combined with the species' popular appeal, will complicate management and recovery of sea otters in Washington, as they have in Alaska and California. The goals of the sea otter recovery plan are: 1) to outline strategies that will assure a self-sustaining sea otter population in Washington through the foreseeable future, and 2) to manage the Washington sea otter stock in a manner consistent with the federal Marine Mammal Protection Act, state and federal laws, and court rulings. The sea otter will be considered for downlisting to State Threatened status when the following three conditions are met: 1) a population of at least 500 sea otters has existed in Washington for at least 5 consecutive years; 2) the Washington sea otter population is distributed such that a single catastrophic event, such as a major oil spill, would be unlikely to cause its extirpation; and 3) management plans or agreements by the state's sea otter co-managers are in place that provide for the continued viability of the sea otter in Washington. Downlisting to State Sensitive status will be considered when the population reaches 1,850 otters and criteria 2 and 3 above are met.
For more information on wildlife management issues, please contact WDFW Wildlife Management Program.
Phone: 360-902-2515
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